This amendment specifies the changes required to IEEE 802.5, 1999 Edition (ISO/IEC8802-5:1998 base standard), IEEE Stds 802.5r and 802.5j, 1998 edition (ISO/IEC 8802-5:1998/Amd. 1:1998), and IEEE Std 802.5t-1999, to support 1000 Mbits/s Dedicated Token Ring (DTR) operation. The base standard together with Amendment 1 specifies shared and dedicated (point-to-point) Token Ring operation at both 4 and 16 Mbits/s using either the TKP Access protocol or the TXI Access Protocol. This standard extends Token Ring operation to 1000 Mbits/s for the DTR C-Port and Station using the TXI Access Protocol. Extensions to the Media Access Control have been made to accommodate the requirements for the 1000 Mbits/s media rate.

This Local and Metropolitan Area Network standard, ISO/IEC 8802-5:1998, is part of a family of local area network (LAN) standards dealing with the physical and data link layers as defined by the ISO/IEC Open Systems Interconnection Basic Reference Model. Its purpose is to provide compatible interconnection of data procesing equipment by means of a LAN using the token-passing ring access method ...

A highly useful international standard that provides for the compatible interconnection of data processing equipment via a local area network using the token-passing ring access method.

This Local and Metropolitan Area Network standard, ISO/IEC 8802-3: 1996 [ANSI/IEEE Std 802.3, 1996 Edition], specifies the media access control characteristics for the Carrier Sense Multiple Access with Collision Detection (CSMA/CD) access method. It also specifies the media, Medium Attachment Unit (MAU) and physical layer repeater unit for 10Mb/s baseband and broadband systems, and it provides a 1 Mb/s baseband implementation.